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Seawater contains about 885ppm S. Assuming that this is in the form of SO42-, what weight of BaSO4 precipitate would be expected from 100mL of seawater sample?
a high pressure natural gas tank is at 3600 psi. the tank contains 4.98 mol of methane ch4 and 0.66 mol of ethane
The total pressure in the system is found to be 3.0 atm and the mole fraction is 0.12. Find K(pressure) Can someone explain all the steps to get to the answer?
Determine the mass, of: a.30.0 mL of the liquid propylene glycol, a moisturizing agent for foods,
silicone has a face centered cubic crystal structure with unit cell length of 5.43 angstroms and four atoms per unit cell. A) how many silicon atoms are there in 1 cm3 of material
the freezing point and boiling points of bromine br2 are -7.2degc and 58.8degc respectively. given that the heat of
Titration of 15mL of 0.125M unknown base with 0.103M HCl required 18.2mL to reach the equivalence point. the pH at the equivalence point was 2.74.
in joules experiments the slow lowering of a weight through a pulley and cable arrangement turned a stirrer in an
A sample contains a mixture of two dyes, A and B. The molar absorptivity coefficients for dye A are 4,875 M-1cm-1 at 628nm and 2,518 M^-1cm^-1 at 684 and for dye B are 1,578M^-1cm^-1 at 628nm and 11,543M^-1cm^-1 at 684nm. In an unknown mixture of ..
They are tethered together and are at the same temperature and pressure. Which balloon has the greater number of gas particles. Which balloon has the greater mass. Which balloon has the greater density.
An analyst collects and melts 555.0 g of snow. a 100 g portion of the resulting water is made basic with ammonia, treated with cyanide and to mask other metal ions, and then extracted with 10.0 mL of a solution of dithizone in chloroform. the chlo..
A 0.250 mol sample of argon gas has a volume of 9.00 L at a pressure of 875 mm Hg. What is the temperature (in celsius) of the gas?
Derive the relationship that the effective rate constant of the reaction K is the same as (d[P]/dT)/([A][B]) takes the form k= k2 exp(-deltaG/RT) Where deltaG(these deltaG are with double dagger )is the standard free energy difference between the ..
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